20744504

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{19}}^2\times {\mathrm{653}}^1$

素因数の和:708

約数の個数: 48

約数和(自身を含む): 44851320

約数和(自身を除く): 24106816

約数列:

[1, 2, 4, 8, 11, 19, 22, 38, 44, 76, 88, 152, 209, 361, 418, 653, 722, 836, 1306, 1444, 1672, 2612, 2888, 3971, 5224, 7183, 7942, 12407, 14366, 15884, 24814, 28732, 31768, 49628, 57464, 99256, 136477, 235733, 272954, 471466, 545908, 942932, 1091816, 1885864, 2593063, 5186126, 10372252, 20744504]

約数ペア:

[(1, 20744504), (2, 10372252), (4, 5186126), (8, 2593063), (11, 1885864), (19, 1091816), (22, 942932), (38, 545908), (44, 471466), (76, 272954), (88, 235733), (152, 136477), (209, 99256), (361, 57464), (418, 49628), (653, 31768), (722, 28732), (836, 24814), (1306, 15884), (1444, 14366), (1672, 12407), (2612, 7942), (2888, 7183), (3971, 5224)]